I have been playing gt5p ever since it came out in Japan and I just found out that you can use the clutch with a G27... Has it always been on there? I noticed that you have to put the car in reverse on the shifter before it activates the clutch..
i just purchased the g27 today and i have found that holding down the top button of the diamond configuration on the shifter (where the triangle would be on a normal dualshock) right after you you select start race, will activate the clutch.